Home / 714,244.75-985,669.76-391,984.83

Finding the Fourth Proportional to 714,244.75, 985,669.76 and 391,984.83

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Solution

The fourth proportional to 714,244.75, 985,669.76 and 391,984.83 is: 540,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,244.75 : 985,669.76 = 391,984.83 : x
  2. Step 2: Convert to fraction form
    714,244.75/985,669.76 = 391,984.83/x
  3. Step 3: Cross multiply
    714,244.75x = 985,669.76 × 391,984.83
  4. Step 4: Simplify right side
    714,244.75x = 386,367,593,309.74
  5. Step 5: Solve for x
    x = 386,367,593,309.74/714,244.75
  6. Step 6: Final answer
    x = 540,945.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.